The transit agency is warning drivers of major traffic delays while crews rebuild an older portion of the Fairfax County Parkway in Fair Lakes. It's part of the $69.5 million, partially funded by federal stimulus money. The entire project requires ten hours of uninterrupted construction whichs is why VDOT says they cannot work around rush hours to complete it.

Lane and ramp closures start at 11 p.m Friday and end at 11 p.m. Sunday.

If the weather cooperates, workers will add a pier to the parkway bridge so they can widen that bridge to three lanes over Route 50. This pile driving work will be done between 7 a.m and 9 p.m. Saturday and Sunday. A Fairfax County noise ordinance prohibits VDOT from doing this work at night.

Here is a complete list of the lane and ramp closings:

On westbound Route 50, three lanes will narrow to one lane from West Ox Road to just west of the parkway. Lanes will shift to the right through the work zone under the Fairfax County Parkway bridge.

On eastbound Route 50, three lanes will narrow to two lanes and traffic will shift to the right approximately 300 feet prior to the Fairfax County Parkway. All three lanes will be open east of the bridge.

Two ramps will be closed: Northbound Parkway to westbound Route 50 and southbound Parkway to eastbound Route 50. Traffic headed north on the Parkway will turn left on Rugby Road to Route 50. Traffic headed south on the Parkway will be detoured left on Fair Lakes Parkway, and left on West Ox Road to Route 50.

On the Fairfax County Parkway over Route 50, one of two lanes in each direction will be closed.

Avoid eastbound Route 50:Shoppers heading to Fair Oaks Mall should use I-66 rather than Route 50 and Stringfellow Road rather than the Fairfax County Parkway.
Take Route 50 East to Route 28 South to I-66 East or to Route 29 North.
Take Route 50 East, turn right on Stringfellow Road, left on Route 29 North.

Avoid westbound Route 50:Leaving Fair Oaks Mall, take Fair Lakes Parkway, turn right on Stringfellow Road, left on Route 50
From I-66, continue west past Route 50 and exit at Route 28 North
Coming from the City of Fairfax, use Route 29 as an alternate route.